Species comparisons. Cyrtodactylus rosichonariefi sp. nov. is distinguished from all congeners of the C. semenanjungensis species complex (Grismer et al. 2014b) of Peninsular Malaysia and Singapore except C. majulah, C. pantiensis Grismer, Chan, Grismer, Wood & Belabut, C. metropolis Grismer, Wood, Chan, Anuar & Muin, and C. payacola Johnson, Quah, Shahrul, Muin, Wood, Grismer, Greer, Chan, Ahmad, Bauer & Grismer, by having a reddish iris, absence of reticulated pattern on head, lack femoral pores and lack of enlarged median subcaudal. As enumerated in Table 2, C. rosichonarief can be readily differentiated from C. majulah, C. metropolis, C. pantiensis and C. payacola by absence both of precloacal pores and tubercles on the forearm. It is differs from C. majulah by absence of enlarged precloacal scales, fewer dorsal tubercles (19 versus 22), fewer paravertebral tubercles (34 versus 39–46) and fewer subdigital lamellae on the fourth toe (18–19 versus 20–23). It is further differentiated from C. metropolis by the absence of enlarged precloacal scales, fewer dorsal tubercles (16 versus 22), fewer subdigital lamellae on the fourth toe (18–19 versus 20–21) and by having a blotched as opposed to a banded dorsal pattern. The new species can differentiated from C. pantiensis by fewer dorsal tubercles (19 versus 22) and subdigital lamellae on fourth toe (18–19 versus 22–23). It can be differentiated from C. payacola by absence of enlarged precloacal scales, fewer dorsal tubercles (19 versus 21) and fewer paravervetebral tubercles (34 versus 37–39). These character states are scored across all species of the swamp-dwelling clade in Table 2 (RIYANTO et al. 2015).

Comment

Abundance: only known from its original description (Meiri et al. 2017).

Etymology

Etymology. The specific epithet rosichonariefi combines the names of two Indonesian scientists. We would like to recognize the contributions made by Rosichon Ubaidillah, an entomologist and director of the Museum Zoologicum Bogoriense (MZB), and Ahmad Jauhar Arief, a former director of MZB. Both gentlemen are very supportive and provide opportunities and facilities for young researchers at the MZB to develop their skills. We fell that naming a species after them is a much-deserved honor.